Patti LaBelle honors the memory of Luther Vandross, her best friend of 40 years, with an emotional rendition of his chart-topping hit "Here & Now." Then, Patti shares what she wants everyone to know about him.

"He was so much fun," Patti says. "And he was such a prankster. He would always play tricks on people and buy you good clothes, too. He bought me all this fierce Versace—he treated his women to beautiful clothes."

What did Luther teach Oprah? "This is what I learned from Luther...I learned the meaning of living well," Oprah says. "He had Lalique glasses to drink Kool-Aid out of. He lived so fabulously."